Upbit

Upbit is South Korea's largest and most-traded cryptocurrency exchange, commanding approximately 90 percent of the country's domestic crypto trading volume and ranking among the largest exchanges globally by spot volume. Operated by Dunamu Inc., a Seoul-based fintech company founded in 2012, Upbit launched on October 24, 2017 with an initial partnership with the American exchange Bittrex, which provided early liquidity infrastructure. Within two months of launch, the platform reached the top position globally in 24-hour trading volume, reflecting the intensity of South Korea's crypto retail market.

Core Mechanism and Trading Model

Upbit operates as a pure spot exchange. There are no futures contracts, perpetuals, margin accounts, or leverage products — the platform is intentionally restricted to direct buy-and-sell transactions for digital assets. This design keeps the platform accessible to retail investors and aligns with South Korean regulatory expectations, which have historically viewed leveraged crypto products with significant skepticism.

Markets are denominated in Korean Won (KRW), Bitcoin (BTC), and USDT, with the KRW pairing dominant by volume. Fee structure is straightforward: KRW-market trades carry a 0.05 percent flat maker-taker fee, while BTC and USDT market trades are charged at 0.25 percent. High-volume traders with at least $5 million in rolling 30-day volume receive a discounted rate of 0.04 percent across all markets. Deposits are free; withdrawals carry standard blockchain network fees.

The exchange lists approximately 200 cryptocurrencies, curated rather than exhaustive. Upbit applies an active delisting policy, removing assets that fall below liquidity thresholds or present security concerns — something that distinguishes it from exchanges that list aggressively and rarely cull their books.

Products and Features

Beyond spot trading, Upbit offers on-exchange staking for several major proof-of-stake assets. Solana (SOL) is among the supported staking assets, alongside ETH, ADA, and ATOM, with potential annual rewards advertised up to 17 percent depending on network conditions. Staking is managed by the exchange on behalf of depositors.

The exchange provides a full REST and WebSocket API, documented through a dedicated developer portal at global-docs.upbit.com. The Quotation API covers market data including OHLCV candles, live trades, and order books. The Exchange API supports order placement, cancellation, balance queries, and deposit or withdrawal management. Real-time data is streamed via WebSocket for trades, order books, and private account events. Regional API key management is handled separately for Singapore, Indonesia, and Thailand operations.

Solana on Upbit

Solana is a first-class asset on the platform. SOL trades in the KRW market, making it accessible to Korean retail investors without needing to hold BTC or a stablecoin as an intermediary. The availability of SOL staking directly through the exchange lowers friction for Korean holders who want yield without interacting with on-chain infrastructure. However, Upbit's role in the Solana ecosystem is primarily as a liquidity venue and on-ramp rather than as a protocol-level participant — the exchange does not run validators or engage in governance.

The exchange's significance to Solana was underscored, in an adverse way, by a 2025 security incident in which approximately $36 million in Solana-based assets were stolen from exchange wallets. Upbit reimbursed all affected users in full, drawing on its reserve policy. This incident followed a more severe 2019 breach in which 342,000 ETH valued at $48.5 million were stolen — later confirmed in November 2024 to have been orchestrated by North Korea's Lazarus and Andariel hacking groups, marking the first officially confirmed North Korean cyberattack on a domestic Korean exchange.

Security and Regulatory Status

Despite the two breach incidents, Upbit maintains a serious security posture. An estimated 95 percent of user funds are held in cold storage. The exchange holds ISMS (Information Security Management System) certification from South Korea's Korea Internet and Security Agency (KISA), as well as ISO 27001 and ISMS-P certifications — credentials it was among the first crypto exchanges globally to obtain. In September 2021, Upbit received South Korea's first Virtual Asset Service Provider (VASP) license under the country's updated crypto regulations, a regulatory milestone that established the exchange's legal operating framework.

Internationally, Upbit's Singapore entity operates under a license from the Monetary Authority of Singapore (MAS). Operations in Indonesia and Thailand are run through locally compliant structures.

The exchange has not been without regulatory friction. In 2025, Korean regulators assessed a $25 million fine related to over 500,000 alleged KYC violations; the exchange is contesting the penalty. A temporary suspension of KRW deposit and withdrawal services tied to regulatory action caused a significant, if short-lived, drop in market liquidity.

Team and Background

Dunamu was founded in 2012 by Song Chi-hyung, who now serves as chairman. Song previously built a securities trading application called Securities Plus before pivoting to cryptocurrency exchange infrastructure. Sirgoo Lee, a former co-CEO of Kakao Corp. — South Korea's dominant messaging and internet platform — became CEO of Dunamu in December 2017, bringing deep relationships with the Korean tech establishment.

The company's revenue is overwhelmingly derived from transaction fees, which account for over 98 percent of total revenue. Peak annual revenue reached approximately $923 million during the 2021 bull cycle.

In November 2025, Naver Financial — the fintech subsidiary of Naver, South Korea's largest search and internet company — announced an agreement to acquire Dunamu in an all-stock transaction valued at approximately $10.3 billion. The effective date of the stock exchange is set for June 30, 2026, pending approval from the Korea Fair Trade Commission and shareholder votes in May 2026. The stated strategic rationale includes extending Naver Financial's position in payments and digital asset services, with a jointly developed won-pegged stablecoin as a near-term priority following completion of the deal.

Market Position

Upbit's dominance within South Korea makes it a critical gateway for Korean retail capital entering digital asset markets, including Solana. Korean trading patterns have historically influenced global asset prices, particularly for smaller-cap tokens with active Korean retail communities. The platform is not available in the United States, Canada, the United Kingdom, or most of Western Europe, but its combined reach across South Korea, Singapore, Indonesia, and Thailand positions it as the leading institutional and retail access point for crypto in APAC outside of Japan.